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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2011-06-29 23:52:52 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2011-06-30 00:26:49 +0200 |
| commit | cb1955b86c86782ff20037da42ef030057501c34 (patch) | |
| tree | 4d4ed06f8ec32ddc4a47259d82fa470673cdf510 /block/blk-exec.c | |
| parent | fd8ea21276adefc7f0133bd42fcf3b2faf0b15f8 (diff) | |
| download | linux-cb1955b86c86782ff20037da42ef030057501c34.tar.bz2 | |
perf tools: Only display parent field if explictly sorted
We don't need to display the parent field if the parent
sorting machinery is only used for parent filtering
(as in "-p foo").
However if parent filtering is used in combination with
explicit parent sorting ( -s parent), we want to
display it.
Result with:
perf report -p kernel_thread -s parent
Before:
# Overhead Parent symbol
# ........ .............
#
0.07%
|
--- ioread8
ata_sff_check_status
ata_sff_tf_load
ata_sff_qc_issue
ata_bmdma_qc_issue
ata_qc_issue
ata_scsi_translate
ata_scsi_queuecmd
scsi_dispatch_cmd
scsi_request_fn
__blk_run_queue
__make_request
generic_make_request
submit_bio
submit_bh
journal_submit_commit_record
jbd2_journal_commit_transaction
kjournald2
kthread
kernel_thread_helpe
After:
# Overhead Parent symbol
# ........ .............
#
0.07% kernel_thread_helper
|
--- ioread8
ata_sff_check_status
ata_sff_tf_load
ata_sff_qc_issue
ata_bmdma_qc_issue
ata_qc_issue
ata_scsi_translate
ata_scsi_queuecmd
scsi_dispatch_cmd
scsi_request_fn
__blk_run_queue
__make_request
generic_make_request
submit_bio
submit_bh
journal_submit_commit_record
jbd2_journal_commit_transaction
kjournald2
kthread
kernel_thread_helper
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Sam Liao <phyomh@gmail.com>
Diffstat (limited to 'block/blk-exec.c')
0 files changed, 0 insertions, 0 deletions